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RESEARCH PAPERS: Offshore Mechanics/Ocean Engineering

Analytic Determination of the Buckling Speed of Towed Slender Cylindrical Beams

[+] Author and Article Information
G. S. Triantafyllou, C. Chryssostomidis

Department of Ocean Engineering, Massachusetts Institute of Technology, Cambridge, Mass. 02139

J. Energy Resour. Technol 106(2), 246-249 (Jun 01, 1984) (4 pages) doi:10.1115/1.3231046 History: Received July 05, 1983; Revised October 14, 1983; Online October 22, 2009

Abstract

The buckling of submerged, towed slender cylindrical beams is investigated using analytic methods. The problem is formulated using the “slender body” approximation and conditions are sought for which the beam may be in equilibrium at a deflected position. The buckling modes are expressed in terms of generalized Airy functions, and determination of the critical towing speed for buckling is made by solving the resulting eigenvalve problem. The critical towing speed is obtained as a function of the bending stiffness, length-to-diameter ratio and hydrodynamic characteristics of the beam. It is concluded that a blunt tail-end with an increase in length-to-diameter ratio of the beam and externally imposed tension have a favorable effect on the buckling stability of the beam.

Copyright © 1984 by ASME
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